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182 lines
6.2 KiB
182 lines
6.2 KiB
/* Copyright (c) 2011, 2017, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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#include <gtest/gtest.h>
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#include <limits.h>
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#include "m_string.h"
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#include "my_inttypes.h"
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#include "my_stacktrace.h"
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#include "unittest/gunit/test_utils.h"
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namespace segfault_unittest {
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using my_testing::Mock_error_handler;
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using my_testing::Server_initializer;
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class FatalSignalDeathTest : public ::testing::Test {
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protected:
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virtual void SetUp() {
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::testing::FLAGS_gtest_death_test_style = "threadsafe";
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initializer.SetUp();
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}
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virtual void TearDown() { initializer.TearDown(); }
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Server_initializer initializer;
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};
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TEST_F(FatalSignalDeathTest, Abort) {
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#if defined(_WIN32)
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EXPECT_DEATH_IF_SUPPORTED(abort(), ".* UTC - mysqld got exception.*");
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#else
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EXPECT_DEATH_IF_SUPPORTED(abort(), ".* UTC - mysqld got signal 6.*");
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#endif
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}
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TEST_F(FatalSignalDeathTest, Segfault) {
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#if defined(_WIN32)
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int *pint = NULL;
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/*
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After upgrading from gtest 1.5 to 1.6 this segfault is no longer
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caught by handle_fatal_signal(). We get an empty error message from the
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gtest library instead.
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*/
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EXPECT_DEATH_IF_SUPPORTED(*pint = 42, "");
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#elif defined(__SANITIZE_ADDRESS__)
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/* gcc 4.8.1 with '-fsanitize=address -O1' */
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/* Newer versions of ASAN give other error message, disable it */
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// EXPECT_DEATH_IF_SUPPORTED(*pint= 42, ".*ASAN:SIGSEGV.*");
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#else
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int *pint = NULL;
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/*
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On most platforms we get SIGSEGV == 11, but SIGBUS == 10 is also possible.
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And on Mac OsX we can get SIGILL == 4 (but only in optmized mode).
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*/
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EXPECT_DEATH_IF_SUPPORTED(*pint = 42, ".* UTC - mysqld got signal .*");
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#endif
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}
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// Verifies that my_safe_utoa behaves like sprintf(_, "%llu", _)
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TEST(PrintUtilities, Utoa) {
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char buff[22];
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ulonglong intarr[] = {0, 1, 8, 12, 1234, 88888, ULONG_MAX, ULLONG_MAX};
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char sprintbuff[22];
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for (size_t ix = 0; ix < array_elements(intarr); ++ix) {
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char *my_res;
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sprintf(sprintbuff, "%llu", intarr[ix]);
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my_res = my_safe_utoa(10, intarr[ix], &buff[sizeof(buff) - 1]);
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EXPECT_STREQ(sprintbuff, my_res);
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if (intarr[ix] <= ULONG_MAX) {
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sprintf(sprintbuff, "%lu", (ulong)intarr[ix]);
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my_res = my_safe_utoa(10, (ulong)intarr[ix], &buff[sizeof(buff) - 1]);
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EXPECT_STREQ(sprintbuff, my_res);
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}
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}
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}
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// Verifies that my_safe_itoa behaves like sprintf(_, "%lld", _)
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TEST(PrintUtilities, Itoa) {
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char buff[22];
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char sprintbuff[22];
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longlong intarr[] = {0, 1, 8, 12, 1234, 88888, LONG_MAX, LLONG_MAX};
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for (size_t ix = 0; ix < array_elements(intarr); ++ix) {
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char *my_res;
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sprintf(sprintbuff, "%lld", intarr[ix]);
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my_res = my_safe_itoa(10, intarr[ix], &buff[sizeof(buff) - 1]);
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EXPECT_STREQ(sprintbuff, my_res);
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ll2str(intarr[ix], buff, 10, 0);
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EXPECT_STREQ(sprintbuff, buff);
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sprintf(sprintbuff, "%lld", -intarr[ix]);
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my_res = my_safe_itoa(10, -intarr[ix], &buff[sizeof(buff) - 1]);
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EXPECT_STREQ(sprintbuff, my_res);
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// This one fails ....
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// ll2str(-intarr[ix], buff, 10, 0);
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// EXPECT_STREQ(sprintbuff, buff)
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// << "failed for " << -intarr[ix];
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sprintf(sprintbuff, "%llx", intarr[ix]);
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my_res = my_safe_itoa(16, intarr[ix], &buff[sizeof(buff) - 1]);
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EXPECT_STREQ(sprintbuff, my_res);
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ll2str(intarr[ix], buff, 16, 0);
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EXPECT_STREQ(sprintbuff, buff);
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sprintf(sprintbuff, "%llx", -intarr[ix]);
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my_res = my_safe_itoa(16, -intarr[ix], &buff[sizeof(buff) - 1]);
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EXPECT_STREQ(sprintbuff, my_res) << "failed for " << -intarr[ix];
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ll2str(-intarr[ix], buff, 16, 0);
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EXPECT_STREQ(sprintbuff, buff);
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}
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}
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// Various tests for my_safe_snprintf.
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TEST(PrintUtilities, Printf) {
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char buff[512];
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char sprintfbuff[512];
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const char *null_str = NULL;
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my_safe_snprintf(buff, sizeof(buff), "hello");
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EXPECT_STREQ("hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %s hello", "hello");
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EXPECT_STREQ("hello hello hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %s hello", null_str);
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EXPECT_STREQ("hello (null) hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %d hello", 42);
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EXPECT_STREQ("hello 42 hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %i hello", 42);
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EXPECT_STREQ("hello 42 hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %u hello", (unsigned)42);
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EXPECT_STREQ("hello 42 hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %llu hello", ULLONG_MAX);
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sprintf(sprintfbuff, "hello %llu hello", ULLONG_MAX);
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EXPECT_STREQ(sprintfbuff, buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %x hello", 42);
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EXPECT_STREQ("hello 2a hello", buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %x hello", -42);
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sprintf(sprintfbuff, "hello %x hello", -42);
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EXPECT_STREQ("hello ffffffd6 hello", buff);
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EXPECT_STREQ(sprintfbuff, buff);
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my_safe_snprintf(buff, sizeof(buff), "hello %llx hello", (longlong)-42);
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sprintf(sprintfbuff, "hello %llx hello", (longlong)-42);
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EXPECT_STREQ("hello ffffffffffffffd6 hello", buff);
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EXPECT_STREQ(sprintfbuff, buff);
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void *p = this;
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my_safe_snprintf(buff, sizeof(buff), "hello 0x%p hello", p);
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snprintf(sprintfbuff, sizeof(sprintfbuff), "hello 0x%llx hello",
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(long long)p);
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EXPECT_STREQ(sprintfbuff, buff) << "my_safe_snprintf:" << buff;
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}
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} // namespace segfault_unittest
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